Antoine, head waiter at a restaurant, goes into a park and sees a man trying to hang himself. He rescues Louis and tries to get him back to his grandparents who raised him. Louis now hangs on to Antoine which makes Antoine's girlfriend mad. Antoine thinks maybe Louis will be able to let him go if he gets back with his girlfriend, Blanche, but Blanche is not that interested. In the end, the relationships are not what they started with.
I thought it was cute, but not as funny as it was apparently supposed to be. That's probably because I'm not French.